The Villain Won't Leave Me Alone!

I can't believe that female lead.. He's clearly a scumbag.. Just because he has the male lead halo doesn't mean he is the only option!! I planned to stay far away from all the main characters, but why won't the villain leave me alone? His character has too much of a gap from the original novel,, why?? Running away should have solved it so why did it become like this!?
...
*He tried to brush off what she just said, despite the whiplash it gave him from such a calm beauty murmuring a cuss after he introduced himself. After a short pause she bluntly spoke to him in a serious tone, "You don't want this engagement, right?"

*Snippet from Chapter 14